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Speciation, distribution, and potential ecological risk assessment of heavy metals in Xiamen Bay surface sediment

ISSN号：0253-505X
期刊名称：《海洋学报：英文版》
时间：0
分类：X820.4[环境科学与工程—环境工程] P736.41[天文地球—海洋地质;天文地球—海洋科学]
作者机构：[1]College of Ocean and Earth Science, Xiamen University, Xiamen 361005, China, [2]Third Institute of Oceanography, State 0ceanic Administration, Xiamen 361005, China
相关基金：The Fundamental Research Project of Third Institute Oceanography of State Oceanic Administration under contract No. 2011014; the Public Welfare Project of the State Oceanic Administration under contract No. 2011418015.

作者： LIN Cai[1,2], LIU Yang[2], LI Wenquan[1], SUN Xiuwu[2], JI Weidong[2]

关键词：生态风险评价, 表层沉积物, 重金属, 厦门湾, 形态, 连续提取方法, 评价方法, 工业废水, Xiamen Bay, heavy metals, speciation, distribution, ecological risk

中文摘要：

在 2011 年 10 月，种形成，分发，和潜在的生态的风险在厦门海湾基于表面沉积的调查对在这个区域的重金属(Cu， Pb， Zn， Cd，和 Cr ) 的评价用顺序的抽取方法和生态的风险评价被学习方法。结果显示了：(1 ) 这些重金属的全部的集中被流量，工业废水，和污水影响，并且都比的在沿海的区域是更高的近海区域当 Pb 的最高的区域由于空气是远一些的离开沿海的水时免职；(2 ) 顺序的抽取建议 Cu 主要与剩余被填写， Fe/Mn-oxide 绑了部分， Pb 被绑在 Fe/Mn-oxide， Zn 和 Cr 被剩余统治，并且 Cd 跳了到可交换并且碳酸盐部分；(3 ) 移植和转变顺序的顺序是 Cd > Pb > Cu > Zn > Cr 和污染的度是 Cd > Pb > Cu > Zn > Cr；并且(4 ) 第二等、主要的阶段的比率证明 Zn 和 Cr 两个都是干净的， Cu 可以被弄脏， Pb 中等被弄脏，当 Cd 重重地被弄脏时。

英文摘要：

Based on the survey of surface sediment in Xiamen Bay in October 2011, the speciation, distribution, and potential ecological risk assessment of heavy metals （Cu, Pb, Zn, Cd, and Cr） in this area were studied us-ing the sequential extraction method and ecological risk assessment method. The results indicated：（1） the total concentrations of these heavy metals were influenced by runoff, industrial wastewater, and sewage, and were all higher in the coastal area than the offshore area while the highest area of Pb was a little far-ther away from the coastal water due to atmosphere deposition;（2） sequential extractions suggested that Cu was mainly composed with residual and Fe/Mn-oxide bound fractions, Pb was bound to Fe/Mn-oxide, Zn and Cr were dominated by residual, and Cd bound to exchangeable and carbonate fractions; （3） the order of migration and transformation sequence was Cd＆gt;Pb＆gt;Cu＆gt;Zn＆gt;Cr and the degree of pollution was Cd＆gt;Pb＆gt;Cu＆gt;Zn＆gt;Cr;and （4） the ratios of the secondary and primary phases showed that Zn and Cr were both clean, Cu may be polluted, Pb was moderately polluted, while Cd was heavily polluted.

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